Rotary engine



(No Model.) 4 Sheets-Sheet 1.

A. TICKLE.

ROTARY ENGINE. No. 398,988. Patented Mar. 5, 1889.

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(No Model.) 4 Sheets-Sheet 2. A. TIGKLE.

ROTARY ENGINE. No. 898,988. PatentedMar. 5, 1889.

ATTORNEYS.

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(No Model.) 4 Sheets-Sheet 3.

A. TIOKLE.

ROTARY ENGINE.

No. 398,988. Patented Mar. 5, 1889.

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(No Model) 4 Sheets-Sheet 4.

A. TICKLE.

ROTARY ENGINE.

No. 398,988. Patgnted Mar. 5, 1889.

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UNITED STATES PATENT li rrici,

ARTHUR TlCKLlhOF BROOKLYN, NEXY YORK.

ROTARY ENGIN E.

SPECIFICATION forming part of Letters Patent No. 398,988, dated March 5, 1889. Application filed September 5, 1888. Serial No. 284,615. (No modelfis Be it known that I, ARTHUR TICKLE, of Brooklyn, in the county of Kings and State of New York, have in vented a new an d Improved Rotary Engine, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved rotary engine which is simple and durable in construction and very effective in operation, utilizing steam to the fullest advantage and adapted to be easily and quickly reversed whenever desired.

The invention consists of certain parts and details and combinations of the san1c,as will be fully described hereinafter, and then pointed out in the claims,

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a vertical longitudinal section of the improvement. Fig. 2 is a sectional side elevation of the same on the line X X of Fig. 1, showing the piston at the beginning of its revolution in full lines and at the end of its revolution in dotted lines. Fig. 3 is a sectional side elevation of the same on the line 3 y of Fig. 1. Fig. i is a face view of the piston. Fig. 5 is a rear elevation of the steamchest, and Fig. 6 is a sectional plan view of the same on the line .2 .2 of Fig. 5.

The improved rotary engine is provided with a cylinder, A, having the heads B B, in which is mounted to rotate the main driving shaft C, passing centrally through the cylinder A and carrying a piston, D, which is semicircular at one end, and has an elongated part, D, said elongated part extending to the 111- ner surface of the cylinder A, as is plainly shown in Fig. 2. The piston D extends throughout the length of the cylinder A, and its faces fit against the inner surfaces of the heads B and B.

On the periphery of the piston l) operates the lower end of a sliding abutment, E, held 1 to slide vertically in an aperture, F, formed in the offset F, secured on top of the cylinder A, and carrying the steam-chest G, in which is held to slide the reversing-valve H. The steam-chest G is also provided on its top with a steam-inlet opening, I, connected in the usual 1 manner with the boiler or other steam-supply. i

In the offset F and in the cylinder-heads B and B ,respcctively, are formed the steam-inlet ports a and a, leading at their upper ends into the steam-ch est G and adapted to be closed alternately by the reyersing-valve H. The lower ends of the ports a and a open inward into the cylinder A against the faces of the piston D, and are adapted to connect alternately with the segmental recesses b l), respectively formed on the two faces of the piston D, as is plainly shown in Fig. -i. The re cesscs b and I) connect, respectively, with the channels b and b", formed in the piston D and leading outward to its periphery on each side of the part D. Thus live steam from the steam-chest G passes through one of the ports a or a into the respective recess 1) or b, and from the latter to the respective channel 19 or into the interior of the cylinder A at one side of the elongated part I) of the piston D.

011 the faces of the piston D are also formed the segmental recesses c 0', adapted to register with the lower ends of the ports 61 and d, leading upward through the respective heads B and B and the offset F into the steamchest G. The upper ends of the ports d and d are adapted to register with recesses e and 6, formed on the under side of the slidewalve H, and leading into the upper end of the aperture F, containing the vertically-sliding abutment E. The recesses c and c, respectively, extend from the lower ends of the ports (Z and d to an aperture, (1. leading, respect ively, from the steam-inlet ports a and a, so that part of the live steam passing through the said ports a and a can pass through the aperture a? into the recesses sand 0, respectively, and from the latter to the ports [I and 61, respectively, and through the recesses e and 6 onto the top of the sliding abutment E, whereby the latter is pressed downward againstthe periphery of the piston D. In each of the ports 61 and d is formed an aperture, 61 leading inward against the face of the piston D, and adapted to connect with a segmental recess, f or f respectively formed on the faces of the piston D, as is plainly shown in Fig. 4.

The recesses f and f are adapted to connect with the lowerends of the exhaust-ports g and g, formed in the cylinder-heads B and B and in part of the offset F. The upper ends of the exhaust-ports g and g lead into the outlet-openings h an d h, respectively adapted to be opened or closed by valvesJ and J, respectively mounted to slide vertically in valve chambers K and K, respectively formed on the sides of the oii'set F. (See Fig. 2.) Each of the valve-chambers K and K is provided with an outwardly-extending opening, K located opposite the respective opening 72 or h, so that when the respective valve J or .lis disconnected from the said opening 71, or. h the exhaust-steam can pass out into the open air through the opening K in the respective valve-chamber K or K.

The valves J and .l are secured, respectively, to the lower ends of the valve-rods L and L, pivotally connected with an arm,N or N, respectively secured on a shaft, 0, mounted on top of the steam-chest G. On the shaft 0 is secured a second arm, P, pivotally connected with an arm, Q, secured on a shaft, R, mounted to rotate in suitable bearings in the steam-chest G and extendinginto the same. s

On theouter end of the shaft R is secured a hand-wheel, S, for turning the latter, and on the shaft R, on the inside of the steamchest G, is secured a finger, T, the free end of which fits between lugs ll, formed on top of the slidevalve II, so that when the operator turns the hand-wheel S of the shaft R a forwvard or backward sliding motion is imparted to the slide-valve l-l, so that the steam-inlet port a or a can be opened or closed and a consequent connection between the port d and the upper end of the aperture F, or the port (1 and the upper end of the said aperture F, is made by the recesses e or 9. At the same time the turning of the shaft R causes an oscillation of the shaft 0, so that the arms N and N raise and lower the valves J and J simultaneously, whereby one opens or closes, respectively, the opening 71 or h.

Two main exhaust-portse' and 1", extend from the interior of the cylinder A into the exhaust-openings h and h, respectively, said two ports 1' and 2" being located at the sides of the abutment E.

The operation is as follows: 'When the slide-valve H is in the position shown in Fig. 1, the live steam can pass from the steamchest G through the port a and its aperture a into the recess 0 of the piston D. The

- steam passes from the said recess 0 into the through the channel 11 into the cylinder A between the abutment E and the elongated part D of the piston Dthat is, the elongated part D having moved sufficiently to the left in the direction of the arrow t, (see Fig. 2,)

so that the left-hand edge of the abutment E has passed the open end of the channel b the steam passing through the port a presses against the said abutment E and the elongated part D of the piston D, consequently forcing the latter in the direction of the arrow 23. Thus the live-steam entering the port a serves to press the abutment E into contact with the periphery of the piston D about one-half of its revolution, and at the same time the steam forces the piston D forward in the direction of the arrow t, thus imparting a rotary motion to the main driving-shaft.

The steam in front of the piston D and on the right -hand side of the abutment E is exhausted through the port i, leading to the exhaust-opening 72, from which the exhauststeam passes through the valve-chamber K and its opening K into the open air. hen the piston D is on the last half of its revolution, the recess f in the piston D connects the opening (1 of the port (1 with the channel g, also leading to the exhaust-opening h, whereby the steam on top of the abutment E will exhaust through the recess 6 and the said port 9 into the recess f, and from the latter into the port g, leading to the exhaust-opening h. Thus the abutment E can move upward freely as the pressure of the live steam against the upper end of the said abutment is removed. \Vhen the operator desires to reverse the e11- gine, he turns the hand-wheel S so that the slide-valve H changes its position and closes the port a, at the same time disconnecting the recess e from the opening-F. The valve H at the same time uncovers the port a and connects the port d with the upper end of the opening F, so that live steam can pass from the steam-chest G through the said port a into the recess b, and from the latter through the opening Z) into the cylinderA at the left-.

hand end of the piston D. The steam will then exert its pressure on the opposite side of the piston D, whereby the latter will be forced in the opposite direction from the arrow i. The exhaust takes place at the lefthand side of the abutment E, passing from the cylinder A through the port 1) into the exhaust-opening h, which is now opened as the position of the valve Jhas been changed by the turning of the hand-wheel S, as above described, the exhaustopening h being closed by the valve J. The steam for pressing the abutment E down against the piston D passes from the port a through the opening a into the recess 0, and from the latter passes into the port d, and by means of the recess 6 in the under side of the valve H the steam enters the upper end of the aperture F and presses against the top of the abutment E.

ceases It will be seen that the abutment E is automat-ically pressed in contact with the piston I) by the live steam during about one-half of a revolution of the piston D, and during the last portion of the revolution of the said piston the steam on top of the abutment is permitted to exhaust, thus permitting an easy upward movement of the gate on the last half of the revolution of the piston.

It will further be seen that the engine is easily reversed by simply turning the handwheel S, whereby the position of the slide valve H and the positions of the valves J and .l are simultaneously reversed.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a rotary engine, the combination, with a cylinder and a piston mounted to rotate therein, of a gate held to slide in the said cylinder and forced against the said piston by live steam, a steam-chest held on top of the said cylinder, a slide-valve held in the said steam-chest to reverse the motion of the engine, and exhaust-valves moving simultaneously with the said slide-valve to open and close the exhaustports, substantially as shown and described.

In a rotary stean1-engine,a cylinder provided with inlet and outlet ports and also with gate-ports, a steam-chest held on top of the said cylinder, and a valve held to slide in the said steam-chest to open and close alternately said inlet-ports and said gate-ports, in combination with a piston mounted to rotate in the said cylinder and provided on its face with recesses which connect said inletports with the interior of the cylinder, and also connect said inlet-ports with the said gate ports, substantially as shown and described.

3. 111 a rotary steam-engine, a cylinder provided with inlet and outlet ports and also with gate-ports, a steanrchest held on top of the said cylinder, and a valve held to slide in the said steam-chest to open and close alternately said inlet-ports and said gate-ports, in combination with a piston mounted to rotate in the said cylinder and provided on its face with recesses which connect said inlet-ports with the interior of the cylinder, and also connect the said inlet-ports with the said gatoports, and a gate held to slide in the said cylinder against the said piston, being pressed against the latter by the live steam passing through the said gate-ports on top of the said gate, substantiall y as shown and described.

4. In a rotary steam-engine, a cylinder providcd with inlet and outlet ports and also with gate-ports, a steam-chest held on top of the said cylinder, and a valve held to slide in the said steam-chest to open alternately said inlet-ports and said gateports, in combination with a piston mounted to rotate in the said cylinder and provided on its faces with recesses to connect the livestcam ports with the interior of the cylinder, and also provided with recesses for connecting the live steam ports with the gate-ports and for con necting the latter with the exhaust-ports, substantially as shown and described.

5. In a rotary steam-engine, a cylinder provided with inlet and outlet ports and also with gate-ports, a steam-chest held on top of the said cylinder, and a valve held to slide in the said steam-chest to open alternately said inlet-ports and said gate-ports, in combination with a piston mounted to rotate in the said cylinder and provided on itsfaces with recesses to connect the livesteam ports with the interior of the cylinder, and also provided with recesses for connecting the livesteam. ports with the gate-ports and for connecting the latter with the exhaust-ports, and a gate held to slide in the said cylinder and forced against the said piston by live steam entering through the said ports, substantially as shown and described.

6. In a rotary stea1n-cn gin e, a cylinder provided with inlet and outlet ports and also with gate-ports, a steam-chest held on top of the said cylinder, and a valve held to slide in the said steam-chest to open and close alternately said inlet-ports and said gate-ports, in combination with a piston mounted to rotate in the said cylinder and provided on its faces with recesses which connect the live-steam ports with the interior of the cylinder, and also provided with recesses for connecting the live-steam ports with gate-ports and for connecting the latter with exhaust-ports, a gate held to slide in the said cylinder and forced against the said piston by live steam entering through the said gate-ports, and exhaust-valves operating simultaneously with the said slide-valve to open and close the said exhaust openings alternately, substantially as shown and described.

7. In a steam-engine, the combination,with a cylinder having an inlet-port and a gateport, of a piston mounted to rotate in the said cylinder and provided on its face with recesses for connecting the said inlet-port with the said gate-port, substantially as shown and de scribed.

8. In a steam-engine, the combination, with a cylinder having an inlet-port, a gate-port, and an exhaust-port, of a piston mounted to rotate in the said. cylinder and provided on its face with recesses for connecting said inletport with the said gateport and the said gateportwith the exhaustport, substantially as shown and described.

9. In a steam-enginejhc combinatioinwith a cylinder having an inletport, a gate-port, and an exhaust-port, of a piston mounted to rotate in the said cylinder and provided on its face with recesses for connecting said inletport with the said gate-port and the said gate port with the exhaust-port, and a gate heldto slide in the said cylinder and forced against the said piston by steam entering through the gate-port, substantially as shown and described.

10. In a steam-engine, the combination, with a cylinder having an inlet-port, a gate-port, and an exhaust-port, of a piston mounted to rotate in the said cylinder and provided on its face with recesses for connecting said inletport with the said gate-port and the said gateport with the exhaustport, a gate held to slide in the said cylinder and forced against the said piston by steam entering through the gate-port, a stearn-ohest held on top of the said cylinder, and a slide-valve held in the said steam-chest above the said gate and provided with a recess for taking the steam from the gate-port into the said gate, substantially as shown and described.

1] In a steam-engine, the combination,with a cylinder having an inlet-port, a gate-port, and an exhaust-port, of a piston mounted to rotate in the said cylinder and provided on the gate-port on top of the said gate, and an exhaust-valve operating simultaneously with the said slide-valve to open and close the said exhaust opening, substantially as shown and described.

ARTHUR TICKLE.

Witnesses:

DAVID WILSON, BERNARD BRADLY. 

